Black-tailed Gull vs White-cheeked Tern
Larus crassirostris เปรียบเทียบกับ Sterna repressa
Side-by-Side Comparison
| คุณสมบัติ | Black-tailed Gull | White-cheeked Tern |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus crassirostris | Sterna repressa |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 72.8 cm (28.7 in) | 48.3 cm (19.0 in) |
| น้ำหนัก | 675.0 g (23.81 oz) | 118.75 g (4.19 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
Least Concern
Black-tailed Gull
Least Concern
White-cheeked Tern
About These Birds
Black-tailed Gull
Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.
White-cheeked Tern
White-cheeked Tern, 32–34 cm, breeds around the Red Sea, Persian Gulf, and Indian Ocean coasts from East Africa to Pakistan. Grey above and below in breeding plumage, white cheek patch below the black cap. Piscivore; plunge-dives in coastal waters. Some movement to winter quarters in East African coasts.